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Finding the Fourth Proportional to 7,718.01, 10,650.81 and 4,361.91

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Solution

The fourth proportional to 7,718.01, 10,650.81 and 4,361.91 is: 6,019.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.01 : 10,650.81 = 4,361.91 : x
  2. Step 2: Convert to fraction form
    7,718.01/10,650.81 = 4,361.91/x
  3. Step 3: Cross multiply
    7,718.01x = 10,650.81 × 4,361.91
  4. Step 4: Simplify right side
    7,718.01x = 46,457,874.65
  5. Step 5: Solve for x
    x = 46,457,874.65/7,718.01
  6. Step 6: Final answer
    x = 6,019.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.